Question

A student did an experiment to test the hypothesis that salt water freezes at a lower temperature than pure water. Which part of this experiment is the independent variable?

1.temperature
2.water
3.salt

Answer 1

3.salt

Step-by-step explanation:

The independent variable is the different amounts salt that will be added to the water (what is done by the scientist). The dependent variable is the boiling temperature of the water (what is being measured).

lincnet.org